EP0036154B1 - Machine de fabrication par moulage de pièces d'apport en forme de disques sur une tige - Google Patents

Machine de fabrication par moulage de pièces d'apport en forme de disques sur une tige Download PDF

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Publication number
EP0036154B1
EP0036154B1 EP81101673A EP81101673A EP0036154B1 EP 0036154 B1 EP0036154 B1 EP 0036154B1 EP 81101673 A EP81101673 A EP 81101673A EP 81101673 A EP81101673 A EP 81101673A EP 0036154 B1 EP0036154 B1 EP 0036154B1
Authority
EP
European Patent Office
Prior art keywords
elements
chain
stud
chains
hermaphrodite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81101673A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0036154A1 (fr
Inventor
Georges Comte
André Appriou
Jean Couturier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cables de Lyon SA
Original Assignee
Cables de Lyon SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cables de Lyon SA filed Critical Cables de Lyon SA
Publication of EP0036154A1 publication Critical patent/EP0036154A1/fr
Application granted granted Critical
Publication of EP0036154B1 publication Critical patent/EP0036154B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H01B13/18—Applying discontinuous insulation, e.g. discs, beads
    • H01B13/20—Applying discontinuous insulation, e.g. discs, beads for concentric or coaxial cables
    • H01B13/202—Applying discontinuous insulation, e.g. discs, beads for concentric or coaxial cables by molding spacers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14549—Coating rod-like, wire-like or belt-like articles
    • B29C45/14565—Coating rod-like, wire-like or belt-like articles at spaced locations, e.g. coaxial-cable wires

Definitions

  • the present invention relates to a machine for manufacturing disc-shaped filler pieces on a very long rod, comprising mold elements driven by two endless chains and coming to press against each other in an area provided with '' at least one orifice for injection of moldable material, then separating to release the disc-shaped parts fixed on the very long rod.
  • Document FR-A-2,108,142 discloses machines for molding insulating plastic discs on an axial conductor during the manufacture of coaxial cables. These machines include mold elements fixed on two chains, so that a nipple of a mold element of one chain comes to fit into a recess of a mold element of the other chain and ensures thus a good adjustment of the half-cavities of the elements of each chain at the moment when they appear in front of the injection port of the plastic.
  • a composition of the chains is preferred from an alternation of “male” and “female” elements, which leads to composing the chains of an even number of elements and choosing the difference of two. between the numbers of elements of the two strings.
  • the invention therefore aims to provide a machine as specified above which allows to give each of the chains any number of mold elements, including an odd number. It also aims to provide a manufacturing machine whose chains can differ by an odd number of elements, and in particular by one, which ensures the maximum reduction of the effect of the defects of the mold elements on the transmission of high frequency signals in coaxial cables.
  • a machine which is characterized in that at least one of the chains comprises at least one element called "hermaphrodite", comprising both at least one stud and at least one indentation, as well as front legs for attachment to the neighboring element of different spacing from that of the hind legs for attachment to the other neighboring element, these two spacings being such that they make it possible to add said element "hermaphrodite” between an element with wide spacing legs, called “female element” and a element with narrower spacing legs, called “male element”, or between two elements also hermaphrodite.
  • hermaphrodite comprising both at least one stud and at least one indentation, as well as front legs for attachment to the neighboring element of different spacing from that of the hind legs for attachment to the other neighboring element, these two spacings being such that they make it possible to add said element "hermaphrodite” between an element with wide spacing legs, called “female element” and a element with narrower spacing legs, called “male element”, or between two elements also hermaphrodite
  • Figure 1 is a perspective view of a hermaphrodite element of a chain used in the machine according to the invention.
  • Figure 2 is a perspective view of two hermaphroditic elements of an attached chain that can also be used in a machine according to the invention.
  • an element 1 has a flat upper face 3 comprising a stud 4 and a recessed imprint 5.
  • This stud and this imprint are intended to cooperate with a corresponding imprint and a stud of another chain of elements intended to come to form with the chain containing the element 1 the mold of the machine for manufacturing the insulating discs, the chain containing the element 1 constituting the lower chain and the other the upper chain, and the respective elements coming to be applied one against the other in a horizontal plane.
  • the element 1 also comprises a channel 6 for the passage of a central conductor on which the insulating discs must be fixed, and a cavity 7 for molding the insulating disc by injection of plastic material (this channel 6 and this cavity 7 must cooperate with the corresponding channel and cavity of the element of the upper chain to close the entire passage channel of the conductor and the mold cavity of the insulating disc).
  • the element 1 further comprises at the front of the external fastening tabs 8 and 9, and at the rear of the internal fastening tabs 10 and 11, intended to ensure its junction with the preceding element and the next item.
  • the outer front legs 8 and 9 are provided bores 12 and 13, and the inner rear legs of bores 14 and 15, so as to allow the passage of connecting pins.
  • FIG. 2 represents the element 1 assembled with another element 2, which is identical to it, these elements being both hermaphrodite.
  • the element 2 comprises a stud 24 and a recess 25, a passage channel for the central conductor 16 and a cavity 17 for molding the insulating disc.
  • Its front external attachment lugs 28 and 29 pierced with bores such as 32 cooperate with the internal rear lugs 10 and 11 of the element 1 to allow the passage of a junction pin 33. Its interior rear lugs can also be seen. 30 and 31.
  • the elements such as 1 can be assembled indifferently with any other similar element of the same chain, or between a male element and a female element of the same chain, and that they can be applied against any other similar element.
  • another chain to form an insulating disc molding cavity.
  • the number of molding elements of each of the chains can therefore be indifferently even or odd, and their number of elements can therefore differ by an odd number, in particular by a unit. It is thus possible to obtain coaxial cables whose defects of the insulating discs are repeated only at very long intervals, and consequently whose weakening resulting from the defects of the insulating discs is much reduced.
  • the front attachment tabs may be interior, and the rear attachment tabs exterior.
  • the invention applies more particularly to the manufacture of insulating discs on the central conductor of a coaxial cable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Insulating Bodies (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
EP81101673A 1980-03-14 1981-03-09 Machine de fabrication par moulage de pièces d'apport en forme de disques sur une tige Expired EP0036154B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8005769A FR2477952A1 (fr) 1980-03-14 1980-03-14 Machine de fabrication de pieces d'apport en forme de disques sur une tige
FR8005769 1980-03-14

Publications (2)

Publication Number Publication Date
EP0036154A1 EP0036154A1 (fr) 1981-09-23
EP0036154B1 true EP0036154B1 (fr) 1984-09-12

Family

ID=9239685

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81101673A Expired EP0036154B1 (fr) 1980-03-14 1981-03-09 Machine de fabrication par moulage de pièces d'apport en forme de disques sur une tige

Country Status (6)

Country Link
US (1) US4337019A (Direct)
EP (1) EP0036154B1 (Direct)
JP (1) JPS56146740A (Direct)
CA (1) CA1151376A (Direct)
DE (1) DE3165910D1 (Direct)
FR (1) FR2477952A1 (Direct)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50112089D1 (de) * 2000-10-13 2007-04-05 Lapp Insulator Gmbh Herstellung von verbundisolatoren durch anspritzen von einzelschirmen an einen strunk

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1939894A (en) * 1928-03-22 1933-12-19 Goodrich Co B F Method and apparatus for making cored articles of plastic material
US2513609A (en) * 1946-07-25 1950-07-04 John Werner & Sons Inc Machine for making candy suckers
US2742670A (en) * 1950-09-21 1956-04-24 Louis H Morin Means for casting complete stringer lengths
FR1035845A (fr) * 1951-04-12 1953-08-31 Procédé et dispositif pour le moulage en continu de pastilles ou articles analogues
US2760228A (en) * 1952-02-19 1956-08-28 Telecommunications Sa Manufacture of tubular insulators for electric conductors
GB1093764A (en) * 1964-07-27 1967-12-06 Herbert Alberts Improvements in or relating to apparatus for the manufacture of thermoplastic slide fasteners by continuous injection moulding
FR1416600A (fr) * 1964-09-24 1965-11-05 Palette à charnière pour chaîne transporteuse
FR2108142B1 (Direct) * 1970-07-02 1973-11-23 Lignes Telegraph Telephon
FR2210022B1 (Direct) * 1972-12-13 1977-09-02 Telecommunications Sa
US4278625A (en) * 1977-02-25 1981-07-14 Gravi-Mechanics Co. Field transplant systems and methods and components thereof

Also Published As

Publication number Publication date
US4337019A (en) 1982-06-29
CA1151376A (fr) 1983-08-09
EP0036154A1 (fr) 1981-09-23
JPS56146740A (en) 1981-11-14
FR2477952B1 (Direct) 1982-02-05
FR2477952A1 (fr) 1981-09-18
DE3165910D1 (en) 1984-10-18

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